我正在使用最新版本的 Swift 材质库 (2.16.0(。在我的项目中，我有导航抽屉控制器和工具栏控制器作为根视图控制器。然后我尝试呈现模式搜索栏控制器，运动动画工作得很好
let searchController = AppStoryboard.Tree.viewController(viewControllerClass: SearchViewController.self)
let searchBarController = SearchBarController(rootViewController: searchController)
searchBarController.isMotionEnabled = true
searchBarController.motionTransitionType = .autoReverse(presenting: .fade)
toolbarController?.present(searchBarController, animated: true)
但是在日志中我看到消息：
Unbalanced calls to begin/end appearance transitions for <Material.SearchBarController: 0x7f8db554bde0>.
Unbalanced calls to begin/end appearance transitions for <NavigationDrawerController: 0x7f8db680b000>.
我知道，Motion 库有transition(to: <UIViewController>)方法。但是这种方法对我不起作用，因为它取代了rootViewController
这已在CosmicMind/Motion #42中修复，并在Motion 1.4.3中发布，Material 2.16.3